{"product_id":"rti-amr-220-amr220-class-d-digital-mixer-amplifier","title":"RTI AMR-220 (AMR220) Class-D Digital Mixer\/Amplifier","description":"AMR-220 2 x 1 Audio Mixer Amplifier \u003cbr\u003e \u003cbr\u003e\n\nThe AMR-220 is a compact-size Class-D digital mixer\/amplifier for classroom or meeting room applications requiring switching of two audio sources (e.g., laptops, video conference systems). Additionally, a microphone can be mixed with the line-level audio sources. The adjustable balanced\/unbalanced microphone input supports condenser, dynamic, or wireless microphones.\u003cbr\u003e\u003cbr\u003e\n\nThe loop output can be used to share the same audio sources with multiple AMR-220s that power more speakers in different audio zones. The AMR-220 offers various control options, including RS-232, as well as a convenient top control panel.\u003cbr\u003e\u003cbr\u003e\n\nKey Features:- \u003cbr\u003e\n•Two input, one output audio mixer\/amplifier.\u003cbr\u003e\n•Two analog audio inputs (switchable).\u003cbr\u003e\n•Balanced\/unbalanced adjustable microphone input with 48V phantom power for condenser, dynamic, or wireless microphones.\u003cbr\u003e\n•Supports microphone mixing to an audio line source\u003cbr\u003e\n•Built-in Class-D amplifier\u003cbr\u003e\n•Power Output: 2 x 20 Watts (4 Ohms) or 1 x 40 Watts bridged (8 Ohms).\u003cbr\u003e\n•EQ control (bass \/ treble).\u003cbr\u003e\n•RS-232 control.\u003cbr\u003e\n•Audio loop output to share audio sources with multiple amplifiers.\u003cbr\u003e\n•Compact form factor with noiseless convection cooler.\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:- \u003cbr\u003e\nPower: +24 VDC \u003cbr\u003e\nMounting: Surface \/ wall mount \u003cbr\u003e\nAudio Input: One Line Input Stereo (RCA jack), One Line Input Stereo (3.5 mm jack) \u003cbr\u003e\nMicrophone Input: One balanced\/unbalanced (3-pin Phoenix Connector), Switchable Line \/ 48V Phantom Power \u003cbr\u003e\nInput Impedance: \u0026gt; 10K Ohms \u003cbr\u003e\nAudio Output: One Stereo Speaker Output (4-pin terminal block), One Loop Output (3.5 mm jack) \u003cbr\u003e\nRated Output Power: 2 x 20 Watts @ 4 Ohms \/ 1 x 40 Watts bridged @ 8 Ohms \u003cbr\u003e\nSpeaker Impedance: 4 to 8 Ohms\u003cbr\u003e \nFrequency Response: 20Hz to 20KHz\u003cbr\u003e \nBandwidth: 20Hz to 25Khz\u003cbr\u003e \nSignal-to-Noise Ratio: 80dB at maximum output \u003cbr\u003e\nChannel Separation: \u0026gt; 75dB @ 20Hz to 20Khz\u003cbr\u003e \nVoltage Gain: 32dB\u003cbr\u003e \nCMRR: \u0026gt; 70dB @ 20Hz~20KHz \u003cbr\u003e\nTotal Harmonic Distortion + Noise @ 1KHz: 1% at nominal level \u003cbr\u003e\nTotal Harmonic Distortion + Noise @ 20KHz: 0.3% at nominal level \u003cbr\u003e\nFront Panel Control 5 Buttons for Input Select, Volume and EQ \u003cbr\u003e\nRS232 Control: One, Bidirectional control (3-pin Phoenix Connector)\u003cbr\u003e \nOperating Temperature: C -10 to +40 degrees F +14 to +104 degrees \u003cbr\u003e\nOperating Humidity 5% to 95% Non-condensing \u003cbr\u003e\nDimensions WxHxD: 4.84\" (123mm) x 1.55\" (39.5mm) x 3.42\" (87mm) \u003cbr\u003e\nWarranty Three Years (Parts \u0026amp; Labor)","brand":"RTI","offers":[{"title":"Default Title","offer_id":57415059833164,"sku":"RTIAMR220","price":231.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/RTI-AMR220.jpg?v=1777553514","url":"https:\/\/www.stoneaudio.co.uk\/products\/rti-amr-220-amr220-class-d-digital-mixer-amplifier","provider":"Stone Audio","version":"1.0","type":"link"}